Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Technologies
- Product Families
Features & Benefits
- Materials Features
- 4067-70 Meets Your Needs
Exceeds MIL-P-25732
Seals made from our 70-durometer nitrile compound 4067-70 exceed the requirements of MIL-P-25732. Parco supplies seals to 28 military and aerospace specifications. We are also one of only a few manufacturers approved to supply Qualified Products List (QPL) rubber seals. Our quality system is certified to ISO 9001, ISO/TS 16949, AC7115, and AS9100. So when you specify 4067-70, rest assured that you’ve made the right choice.
Excellent Resistance to Low Temperatures
Seals used in low temperatures may become hard and brittle, making them more susceptible to cracking. Parco’s 4067-70 seals can be used in static sealing applications with continuous service temperatures as low as -65°F. The American Society for Testing and Materials (ASTM) recommends the temperature retraction (TR-10) test to evaluate rubber for low-temperature service. Our laboratory technicians performed a TR-10 test on our 4067-70 material. After stretching O-rings made from our 4067-70 compound 50 percent in freezing temperatures, we gradually raised the temperature. The O-rings retracted 10 percent at low temperature of -53°F The temperature at which rubber retracts 10 percent approximates the material’s low service temperature in dynamic applications. The excellent low-temperature properties of 4067-70 seals enables them to resist cracking in lowtemperature applications
Exceptional Prices
Parco’s 4067-70 prices are among the lowest available. We use the latest manufacturing techniques and sell in huge volume. That allows us to provide you with seals for MIL-P-25732 at a great price.
Applications & Uses
- Applications
- Cure Method
- Plastics & Elastomers End Uses
- Chemical Resistance
USE WITH DO NOT USE WITH - Gasoline
- Military Aircraft Hydraulic Fluid
- Automatic Transmission FIuid
- Hot Air
- Ultraviolet Light
Properties
- Chemical Resistance
- Color
- Physical Properties
| Value | Units | Test Method / Conditions | |
| Hardness | 75.0 | Shore A | D2240 |
| Tensile Strength | 2748.0 | psi | D412 |
| Ultimate Elongation (pct) | 174.0 | — | D412 |
| Modulus (100 pct, Elongation, pct) | 1654.0 | psi | D412 |
| Compression Set Solid 22 hours (100°C, 212°F ) Pct of Original Deflection | max.13 | — | D395 |
| Heat Aging 70 hours (100°C, 212°F) Hardness Change, pts. | 5.0 | Shore A | D573 |
| Heat Aging 70 hours (100°C, 212°F) Tensile Strength Change, pct. | -8.0 | — | D573 |
| Heat Aging 70 hours (100°C, 212°F) Ultimate Elongation Change, pct. | max. -17 | — | D573 |
| Fluid Aging, Fuel B 70 hours (23°C, 73°F) Hardness Change, pts. | -12.0 | Shore A | D471 |
| Fluid Aging, Fuel B 70 hours (23°C, 73°F) Tensile Strength Change, pct. | -21.0 | — | D471 |
| Fluid Aging, Fuel B 70 hours (23°C, 73°F) Ultimate Elongation Change, pct. | -24.0 | — | D471 |
| Fluid Aging, Fuel B 70 hours (23°C, 73°F) Volume Change, pct. | 23.0 | — | D471 |
| Low Temperature Flexibility TR-10 | -47(-53) | °C(°F) | D1329 |
| Low Temperature Flexibility Glass Transition (Midpoint) | -54(-65) | °C(°F) | D1329 |
Regulatory & Compliance
- Certifications & Compliance
Technical Details & Test Data
- Technical Details
*High temperature limit is based on requirements in MIL-P-25732 and AMS-P-83461- Technical Details
